Yea, the mileage is kind of a superfluous metric here since it's not like these things wear out, haha
I had them on my S with the OEM turbines and they looked spectacular given that they're pretty well recessed into the wheel well from the factory. Looked very much like the stance on the new Model Ss with the 21s.
Unfortunately these won't work with the slipstreams because those wheels don't have deep enough openings/pockets between the bolt holes so that the OEM studs can fit into them.